package ru.study.thinkin.chapter8;

import java.util.ArrayList;
import java.util.Collection;

public class Instrument {
	 void play(Note n) {
		System.out.println("Instrument.play() "+n);
	}
	String what() {
		return "Instrument";
	}
	void adjust() {
		System.out.println("Adjusting instrument");
		Collection <String> inx = new ArrayList(); 
	}
}